crawler_task_management/task_management/all_task_management.py

# -*- coding: utf-8 -*-
import time
import json
import asyncio
from typing import Dict, Any
from public_function.asyn_mysql import AsyncMySQL
from public_function.public_func import create_logger
from public_function.redis_task_manager import RedisTaskManager

logger = create_logger(file_name="all_task_management")


class AllTask:
    def __init__(self, config_data: Dict[str, Any]):
        self.config_data = config_data
        self.redis_conn = RedisTaskManager(self.config_data)
        self.db_pool: Optional[AsyncMySQL] = AsyncMySQL(self.config_data["advert_policy"])

    async def deal_shopee_task(self, param: Dict[str, Any]):
        """
        处理Shopee任务的异步方法
        修复了NoneType对象无法await的问题
        """
        # 查询redis数据库，redis数据库存在该数据直接返回
        key = f"{param['shop_id']}:{param['item_id']}"
        # 如果不是重新抓取，先尝试从Redis获取数据
        if not param.get('is_re_crawl', False):
            print(f"{key} 开始在redis中获取数据")
            result = self.redis_conn.read_data(key)
            # 关键修复：确保result不是None再进行处理
            if result is not None:
                print(f"{key} 从Redis缓存中获取到数据")
                return result
        print(f"{key} 在redis中获取数据失败，将任务提交到队列")
        # 确保add_task_to_set是异步方法或正确处理
        self.redis_conn.add_task_to_set(task_data=param)
        # 任务结束后开始等待
        endtime = time.time() + 55
        counter = 0
        while time.time() < endtime:
            # 使用asyncio.sleep而不是time.sleep
            await asyncio.sleep(5)
            counter += 1
            result = self.redis_conn.read_data(key)
            # 关键修复：检查result是否为None
            if result is not None:
                print(f"{key} 第 {counter} 次在redis获取到数据")
                return result
            print(f"{key}：第 {counter} 次从redis中未能获取数据")
        print(f"{key} 在超时时间内未获取到数据")
        return None

    async def task_distribution(self, data: Dict[str, Any]):
        result = dict()
        if data["app_name"] == "Shopee":
            try:
                result = await self.deal_shopee_task(data)
            except Exception as e:
                print(f"{data['item_id']}:{data['shop_id']}获取商品数据失败，失败原因为：{e}")
        return result

    async def deal_receive_data(self, data: Dict[str, Any]):
        # 将商品数据写入mysql和redis
        print("开始处理接收到得数据：{}".format(data))
        await self.db_pool.initialize()
        key = f"{data['shop_id']}:{data['item_id']}"
        params = data.get("goods_info")
        affected_rows = self.redis_conn.write_data(key, params)
        if affected_rows:
            print(f"{key}；数据已存入redis中")
        params_data = {"item_id": data["item_id"], "shop_id": data["shop_id"], "country": data["country"], "app_name": data["app_name"],
                       "goods_info": json.dumps(params)}
        print(f"{params}<")
        affected_rows = await self.db_pool.insert_many(table='goods_information_record', data=[params_data])
        if affected_rows:
            print(f"{key}；商品数据已存入mysql")
        # 更改任务状态
        params = {"task_id": data["task_id"]}
        where_conditions = "account_id = %s"
        affected_rows = await self.db_pool.update(table='crawler_account_record_info', set_columns={"status": 2},
                                                  where_conditions=where_conditions, params=params)
        if affected_rows:
            print(f"task_id{data['task_id']} 任务完成，任务状态已修改成功")
        return True